package com.time.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.time.entity.LoginUser;
import com.time.entity.User;
import com.time.mapper.MenuMapper;
import com.time.mapper.UserMapper;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;
import java.util.Objects;

/**
 * @author mjw
 * @date 2022/11/29
 */
@Service
public class UserDetailsServiceImpl implements UserDetailsService {

    @Resource
    private UserMapper userMapper;
    @Resource
    private MenuMapper menuMapper;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //根据用户名查询用户信息
        LambdaQueryWrapper<User> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(User::getUserName, username);
        User user = userMapper.selectOne(wrapper);
        //如果查询不到数据就通过抛出异常来给出提示
        if (Objects.isNull(user)) {
            throw new RuntimeException("用户名错误");
        }
        // TODO 根据用户查询权限信息 添加到User中
        // 一会儿真实查数据库，现在先做一个假的权限
//        List<String> list = new ArrayList<>(Arrays.asList("sayhello", "delgoods"));
        List<String> perms = menuMapper.selectPermsByUserId(user.getId());
        LoginUser loginUser = new LoginUser(user, perms);
        System.out.println(loginUser);
        //封装成UserDetails对象返回
        return loginUser;
    }
}
